In a message dated 22/01/2010 16:01:38 GMT Standard Time,  
[log in to unmask] writes:

Once you  have any level of experience, and a keen enough eye ( ie the 
Polish girl  mentioned in other posts who has eyes sharper than a hawk 
for  abnormalities) your own observation ( eye and nose)


It is difficult to get enough experience cheaply!  I have seen it only  
once (in 2000) in my own hives, in a couple of cells in a nuc.  I called  the 
Bee Inspector who thought it wasn't EFB but sent off a sample for testing  
anyway, which proved positive.  I called an Inspector last year, duty  bound, 
because I couldn't be certain that what I was seeing was not EFB. He  
applied the Vita tool and said not.
 
The general impression (I don't know whether or not borne out by the  
figures - I don't have access to them) is that, in England, EFB has been on an  
upsurge since burning in all cases was abandoned. However 'post hoc ergo 
propter  hoc' may not apply!
 
Chris

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